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以国外引进的勋章菊品种“星白”和“红纹”及其杂交后代“XH”为试材,利用电子天平称重法比较了自然环境条件下勋章菊3个品种扦插苗及其蔓枝蒸腾速率日变化,分析了勋章菊不同品种营养器官、光照强度、温度及湿度等环境因素对植株蒸腾速率的影响,以期为勋章菊夏季景观应用养护管理中降低养护成本、节约水资源提供参考。结果表明:勋章菊3个品种扦插苗及其蔓枝之间蒸腾速率差异显著,其中“XH”扦插苗平均蒸腾量最大,为300.45g·m-2·h-1,而其蔓枝平均蒸腾量最小,仅为38.76g·m-2·h-1;植株蒸腾速率总体上与光照强度、温度呈正相关,与湿度呈负相关,与营养器官之间存在一定关系,但不同品种之间表现有所差异。
Taking the imported varieties of “Xingbai” and “Red” and their hybrid offspring “XH” as test materials, three varieties of medlar under natural environment were compared by electronic balance weighing method Cutting seedlings and their transpiration rate diurnal changes, analysis of different varieties of medlar chrysanthemum vegetative organs, light intensity, temperature and humidity and other environmental factors on the transpiration rate of plants, with a view to the summer landscape application Care Management to reduce conservation costs, Save water resources for reference. The results showed that there were significant differences in the transpiration rate among the three varieties of cuttage seedlings and their twigs. The “XH” cuttings had the highest average transpiration rate of 300.45g · m-2 · h-1, The average transpiration rate was the lowest, only 38.76g · m-2 · h-1. The transpiration rate of plants was positively correlated with light intensity and temperature, negatively correlated with humidity, and had some relationship with vegetative organs, There are differences between the performance.